Sold out -17% sale
Dometic Qualifies for Free Shipping Dometic Max Control Advanced Liquid 32 oz #379700027
00
DAYS
00
HRS
00
MIN
00
SEC
Dometic Dometic Max Control Advanced Liquid 32 oz #379700027 $22.82 $27.23
Dometic 379700027 Sanitation ChemicalsProvides powerful, long-lasting odor control without formaldehyde. Breaks down waste and toilet tissue for clog-free effectiveness. 4 oz. liquid treats 40-gallon holding tank.Normalized SKU: 379700027UPC Code: 713814074197
Sold out -17% sale
Dometic Qualifies for Free Shipping Dometic Deodorant Green 1 Gallon #379700026
00
DAYS
00
HRS
00
MIN
00
SEC
Dometic Dometic Deodorant Green 1 Gallon #379700026 $45.71 $54.85
Dometic 379700026 Sanitation ChemicalsMAX CONTROL ADVANCED HOLDING TANK DEODORANT - GALLON LIQUIDPowerful, long-lasting odor control without formaldehyde works even in hot weather. Breaks down waste & toilet tissue for clog-free effectiveness. Just 4 oz. liquid deodorant treats a 40 gallon (151L) holding tank. Gallon.Normalized SKU: 379700026UPC Code: 713814074180
-17% sale
Thetford Qualifies for Free Ground Shipping Thetford Fresh Water Tank Sanitizer 36662
00
DAYS
00
HRS
00
MIN
00
SEC
Thetford Thetford Fresh Water Tank Sanitizer 36662 $22.13 $26.42
Thetford 36662 Sanitation ChemicalsFresh Water Tank Sanitizer kills 99% of harmful bacteria - Staph, E-coli, Listeria and other micro-organisms - within 60 seconds! Non-additive - sanitizes inside of tank and plumbing, not the water. Free of bleach and chlorine. Leaves no smell or taste. EPA Registered in all 50 States! First registered sanitizer for fresh water tanks and hoses. Fresh Water Tank Sanitizer Brand: Thetford Thetford part number: 36662 The Thetford name is your assurance of quality Normalized SKU: 36662UPC Code: 209669001001
Sold out -17% sale
Raritan Qualifies for Free Shipping Raritan CP Clean Potties Toilet Cleaner #1PCP22
00
DAYS
00
HRS
00
MIN
00
SEC
Raritan Raritan CP Clean Potties Toilet Cleaner #1PCP22 $15.61 $18.63
  Download LiteratureRaritan 1PCP22 Sanitation ChemicalsC.P. Cleans Potties Bio-Enzymatic Bowl Cleaner - 22oz BottleC.P. Is Like No Other Toilet Bowl Cleaner.It’s the first bowl cleaner to combine a specialized strain of bacteria with 100% biodegradable cleaning agents specifically designed to make the bowl shine like never before and keep the entire system odor-free, while maintaining the bioactive environment essential to odor control in your holding tank. C.P. Destroys Odors On Contact As It Cleans.Just squirt a little C.P. under the rim of the toilet bowl. Stains, soil, and odor – even the worst raw water odors from the intake line - just disappear, usually without brushing. C.P. eliminates the need  to use bleach and other toxic chemicals to sanitize your toilet bowl. Use C.P. to clean sinks, showers and basins too! It leaves them sparkling clean and fresh-smelling. C.P. Is The Only Bowl Cleaner That Can Be Combined With K.O. (Kills Odors)Other toilet bowl cleaners use chemicals. Because C.P. is a bioactive cleaner that uses no chemicals, it won’t kill the bacteria in K.O.(Kills Odors) Normalized SKU: 1PCP22UPC Code: 085462013591Raritan 1PCP22 Literature Download  Product Brochure
-17% sale
Raritan Qualifies for Free Shipping Raritan C.P. Cleans Potties Bio-Enzymatic 32oz #PCP32 Raritan Qualifies for Free Shipping Raritan C.P. Cleans Potties Bio-Enzymatic 32oz #PCP32
00
DAYS
00
HRS
00
MIN
00
SEC
Raritan Raritan C.P. Cleans Potties Bio-Enzymatic 32oz #PCP32 $18.58 $22.18
Raritan PCP32 Sanitation Chemicals Bio-enzymatic formula is specifically designed to clean Raritan toilets & eliminate intake line odors on contact. Raritan C.P. Clean Potties bowl cleaner The only toilet bowl cleaner recommended for Raritan toilets Leaves marine toilet bowls sparkling clean and free or raw odors Will not hurt seals, gaskets, or hoses of toilet Clean scent Helps degrade waste, paper, hair, oils, and soap scum Combines a specialized bio-enzymatic strain of bacteria with 100% biodegradable cleaning agents Non-toxic and non-caustic formula C. P. is the only bowl cleaner that can safely be combined with Raritan's K.O. Kills Odor holding tank treatment Cleans sink, shower, and basin drain to leave them 32-ounce bottle Normalized SKU: PCP32UPC Code: 085462043130
Sold out -17% sale
Camco Qualifies for Free Shipping Camco Rhino Enzyme Holding Tank Treatment 64 oz #41514
00
DAYS
00
HRS
00
MIN
00
SEC
Camco Camco Rhino Enzyme Holding Tank Treatment 64 oz #41514 $18.99 $22.66
Camco 41514 Sanitation ChemicalsTreatment features a Bacteria/ Enzyme formula to digest waste and break down tissue for easy biodegradation. Natural formulation digests waste, tissue, fats and proteins. Activates only in the presence of material requiring digestion. Advanced formula is stable, with a long shelf life and is not temperature sensitive. Also contains a buffering agent to prevent acid formation and septic odors. This product harnesses the natural process by which nature digests waste. Environmentally friendly and biodegradable. Fresh pine scent. 2 ounces treats 40 gallons. Natural formulation digests waste, tissue, fats and proteins Advanced formula is stable Fresh pine scent Environmentally friendly and biodegradable Activates only in the presence of material requiring digestion Normalized SKU: 41514UPC Code: 014717415149
-17% sale
Raritan Not Qualified for Free Shipping Raritan 1-Gallon KO Kills Odor Holding Tank Deodorant #1PKOGAL
00
DAYS
00
HRS
00
MIN
00
SEC
Raritan Raritan 1-Gallon KO Kills Odor Holding Tank Deodorant #1PKOGAL $49.88 $59.85
Raritan 1PKOGAL Sanitation Chemicals Bio-active formula with odor-killing bacteria to digest holding tank liquids, paper, & solid waste. Raritan K.O. Kills Odor bioactive treatment Breaks down and neutralizes odor-causing waste materials at the source A small amount of KO added to the holding tank keeps the boat odor-free between pump-outs Works without the need for tissue digesters or boosters All-natural to help preserve and protect the marine environment Non-toxic and non-caustic formula Contains no formaldehyde or alcohol 1 gallon container Normalized SKU: 1PKOGALUPC Code: 085462013690
-17% sale
Camco Qualifies for Free Shipping Camco TST Drop-Ins 15-pk #41189
00
DAYS
00
HRS
00
MIN
00
SEC
Camco Camco TST Drop-Ins 15-pk #41189 $18.77 $22.40
Camco 41189 Sanitation ChemicalsTST Orange RV Toilet Treatment Drop-Ins *15-PackThe Camco TST 12 oz. Orange Drop-ins are an effective and environmentally safe way to treat your RV's septic system. Simply drop one unit down the RV's toilet to stop odors and treat the water tank.Features: Drop packet into your RV toilet to break down waste and tissue and treat both black and grey water tanks Stops odors for up to 7 days Fresh citrus scent Environmentally friendly  Safe for septic tanks Contains 12 packets Normalized SKU: 41189UPC Code: 014717411899
Sold out -17% sale
Thetford Qualifies for Free Shipping Thetford Aqua Bio Toss-Ins 16 Pack #96590 Thetford Qualifies for Free Shipping Thetford Aqua Bio Toss-Ins 16 Pack #96590
00
DAYS
00
HRS
00
MIN
00
SEC
Thetford Thetford Aqua Bio Toss-Ins 16 Pack #96590 $14.32 $17.09
Thetford 96590 Sanitation Chemicals The same quick-acting formula in a convenient package Water-soluble packets that are easy to use: Simply toss 'em in the toilet and flush! Fresh citrus-scented formula eliminates offensive odors coming from the holding tanks The efficient waste digester liquefies waste and toilet paper, preventing messy clogs Comes in a 16-pack resealable bag and 30-pack tub Easy dosing system: One 1.5-oz packet treats a 40-gallon holding tank Normalized SKU: 96590UPC Code: 028985965909
Sold out -17% sale
Thetford Qualifies for Free Shipping Thetford Ecosmart Free and Clear 36oz 94028
00
DAYS
00
HRS
00
MIN
00
SEC
Thetford Thetford Ecosmart Free and Clear 36oz 94028 $16.32 $19.48
  Watch VideoThetford 94028 Sanitation ChemicalsEco-Smart Holding Tank Deodorant - Free & Clear FormulaCertified Green and Environmentally FriendlyEcoLogo is North America's oldest, most recognized and respected environmental standard and certification organization. It is the only standard accredited by the Global Eco-Labeling Network that meets the international standard for environmental labels. To meet stringent EcoLogo criteria, a holding tank additive must: Control odors and help decrease waste materials Be biologically based and non-toxic Not harm humans or riparian and aquatic species Not accumulate in the environment Have limited surfactants that biodegrade Features: Quickly breaks down and liquefies waste and tissue to prevent messy clogs Fragrance, dye and formaldehyde free Superior odor control & waste digestion 100% biodegradable Normalized SKU: 94028UPC Code: 028985940289Thetford 94028 Video
-17% sale
Walex Qualifies for Free Shipping Walex Fresh-Pak 30-pk #FRESHPAK30
00
DAYS
00
HRS
00
MIN
00
SEC
Walex Walex Fresh-Pak 30-pk #FRESHPAK30 $24.51 $29.25
Walex FRESHPAK30 Sanitation Chemicals Fresh-Pak® is Walex’s latest innovation in drop-in black tank treatments—delivering the same trusted performance as Citra-Pak® with a brand-new, invigorating fragrance. Each fast-dissolving packet is packed with odor-fighting ingredients and a non-staining formula that keeps your RV’s black tank clean and fresh. Whether you’re prepping for a weekend getaway or maintaining your RV full-time, Fresh-Pak® offers convenient, mess-free sanitation with a scent upgrade you’ll love. Normalized SKU: FRESHPAK30UPC Code: 742693200007
-17% sale
Thetford Qualifies for Free Shipping Thetford Aquakem Tossins Fresh Scent 12-pk #96904
00
DAYS
00
HRS
00
MIN
00
SEC
Thetford Thetford Aquakem Tossins Fresh Scent 12-pk #96904 $19.84 $23.68
Thetford 96904 Sanitation Chemicals Liquefies waste and breaks down tissue fast to prevent clogging Powerful detergents clean tank walls and drain lines Works around the clock in all weather conditions Deodorizes the holding tank and eliminates offensive odors Water-soluble packets break down fast Available in 12-pack and 16-pack resealable bag Easy dosing: one 1.5-oz Toss-In treats a 40-gallon holding tank Normalized SKU: 96904UPC Code: 028985005414
-17% sale
Thetford Qualifies for Free Shipping Thetford Aqua-Kem 6 x 8 oz Fresh Scent #96901
00
DAYS
00
HRS
00
MIN
00
SEC
Thetford Thetford Aqua-Kem 6 x 8 oz Fresh Scent #96901 $26.09 $31.14
Thetford 96901 Sanitation Chemicals Liquefies waste and breaks down tissue fast to prevent clogging Powerful detergents clean tank walls and drain lines Works around the clock in all weather conditions Deodorizes the holding tank and eliminates offensive odors 8-oz bottles with child-resistant caps Comes in 6 x 8 oz bottles Easy dosing: 8 oz of Aqua-Kem® treats a 40-gallon holding tank Normalized SKU: 96901UPC Code: 028985005339
-16% sale
Boat Bling Qualifies for Free Shipping Boat Bling Tank Sauce 6 - 8 oz Bottles #TKS0008-6PK
00
DAYS
00
HRS
00
MIN
00
SEC
Boat Bling Boat Bling Tank Sauce 6 - 8 oz Bottles #TKS0008-6PK $24.99 $29.45
Boat Bling TKS0008-6PK Sanitation Chemicals TANK SAUCE is a must-have for all RV and Travel Trailers. Our Unique formula is Enzyme-based and contains no bacteria. Designed specifically to break down sediment in the black and gray water tanks without damaging the seals and plumbing. A fresh citrus fragrance helps eliminate odors while preventing bacteria growth and build-up. Just pour it into the sinks and toilets and let the TANK SAUCE do the dirty work. Our Enzymatic formula does 10+ critical tank functions in 1 product Easy to Use: Pour down the drains into your tanks Digests toilet paper and prevents clogs Helps eliminate odors and protect internal plumbing seals Compliant with ALL state regulations, including California Unique Formula is Formaldehyde and Bronopol FREE Normalized SKU: TKS00086PKUPC Code: 10858970004781
Sold out -17% sale
00
DAYS
00
HRS
00
MIN
00
SEC
Walex Walex Elemonate 32 oz Deodorizer #ELEMLQ32 $14.49 $17.30
Walex ELEMLQ32 Sanitation ChemicalsWalex Elemonate 32 oz Deodorizer #ELEMLQ32Normalized SKU: ELEMLQ32UPC Code: 742693617706
-17% sale
00
DAYS
00
HRS
00
MIN
00
SEC
Walex Walex Commando 32 oz Cleaner #CMDOLQ32 $16.41 $19.59
Walex CMDOLQ32 Sanitation ChemicalsWalex Commando 32 oz Cleaner #CMDOLQ32Normalized SKU: CMDOLQ32UPC Code: 742693500008
-17% sale
00
DAYS
00
HRS
00
MIN
00
SEC
Walex Walex Citra-Fresh 64 oz Citrus #CITRAFR64 $18.77 $22.40
Walex CITRAFR64 Sanitation ChemicalsWalex Citra-Fresh 64 oz Citrus #CITRAFR64Normalized SKU: CITRAFR64UPC Code: 742693200045
-17% sale
00
DAYS
00
HRS
00
MIN
00
SEC
Walex Walex Citra-Fresh 32 oz Citrus #CITRAFR32 $12.90 $15.39
Walex CITRAFR32 Sanitation ChemicalsWalex Citra-Fresh 32 oz Citrus #CITRAFR32Normalized SKU: CITRAFR32UPC Code: 742693200038
-17% sale
00
DAYS
00
HRS
00
MIN
00
SEC
Walex Walex Citra-Fresh Gallon Citrus #CITRAFR1G $30.50 $36.41
Walex CITRAFR1G Sanitation ChemicalsWalex Citra-Fresh Gallon Citrus #CITRAFR1GNormalized SKU: CITRAFR1GUPC Code: 742693200052
-17% sale
00
DAYS
00
HRS
00
MIN
00
SEC
Walex Walex Bio-Fresh Ocean Mist 64 oz #BIOFROM64 $22.29 $26.60
Walex BIOFROM64 Sanitation ChemicalsWalex Bio-Fresh Ocean Mist 64 oz #BIOFROM64Normalized SKU: BIOFROM64UPC Code: 742693700125

Frequently Asked Questions

First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!

Yes, we offer FREE Shipping on most orders over $149 to US-48*.

Each product displays a shipping status message, just above the item price. Below is the meaning for each of these codes.

  • Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
  • Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
  • Oversized - Not Qualified for Free Shipping: This item is too large/heavy to qualify for free shipping
  • Hazardous Item - Not Qualified for Free Shipping: This item is hazardous and does not qualify for free shipping
  • Truck Freight - Not Qualified for Free Shipping: This item has to be shipped via truck freight. Please contact us for a quote
  • In-Store Pickup Only: This item can only be picked up in our Grain Valley, MO retail store

Below the price of the item, on the product page, there is a message indicating the availability of the product.

The quantity on hand is updated as inventory events happen and matches what we have available. If you have urgent needs and we are close to what you need, contact us, and we can confirm stock.

We offer a hassle-free return policy. If you're not completely satisfied with your purchase, you can return it within 30 days for a full refund or exchange.

If you need to return an item, please follow the guidelines here so we can process a prompt refund and assist you in finding the correct item.

Free Shipping

On most orders $149+ to the continental 48 US states.

Secure Shopping

Fast, secure checkout with a variety of payment methods.

Shop with confidence

25+ years serving the marine industry.

Support center

Need help? Contact us via live chat, phone, or email.