Best Barb Boat Plumbing Fittings in 2026

RV Pressure Regulator: RV water pressure regulator is designed to protect RV and boat appliances, plumbing fixtures, and hoses from high-pressure city water.Fit Type: Universal Fit

Efficient Design: Camper water pressure regulator reduces water pressure to a safe and consistent 40-50 PSI

Safe and Secure: Water regulator for RV and camper is made of durable lead-free, drinking-water-safe brass

Innovative engineering and compact design for the most reliable aeration in contained spaces such as livewell

Rated for 1200 gallons per hour (gph) output at design voltage 13.6 volts DC, or 1140 gph at nominal voltage of 12 volts DC

Features most advanced materials, including premium bearings and brushes, alloys, and magnets

MULTIPURPOSE:The winterizing kit with shut off valve come with 3/4 male and female garden hose connector,When with male garden hose end is typically used to winterize recreational vehicles(RV), watercraft, garden hose, camper, boat and travel trailer. The fitting with female garden hose end is typically used to winterize sprinkler systems, garden hoses, and outdoor plumbing.

FLEXIBLE hose allows the adapter to access tight spaces and minimizes stress on pipes and fittings. 100% outdoor rated, virtually indestructible, impervious to water and oil. Easily connects to air compressor and garden faucet to winterize lawn sprinkler systems, faucets,plumbing and winterizing RV to prevent damage due to freezing. Compatible with standard garden hose threading and air compressor quick-connect commonly found in North America.

LENGTH:The sprinkler blowout kit Pre-assembled length: 12.8 inches (approximate). Longer length than other manufacture,provide extra strength and durability.Easy to do winterize,Blowout water from sprinkler system & RV water line.

Reliably prevents debris from clogging baitwell drain or aerator pump

Formed stainless steel wire mesh molded into black PVC plastic base

Has a ¾-inch-14 NPSM thread

Fitting 1-inch inside diameter drain openings

Insert Drain Plug into drain opening and turn the handle clockwise to tighten it in place

Handle snaps down to lock plug in place

3/4" X 5', Bilge Pump Hose Kit

Includes Plastic Bilge Hose

Plastic Thru-Hull Fitting & 2 Stainless Steel Clamps

Standard Thread has full length thread for thick hulls and easy tightening

Hose Size: 3/4" I.D.

Flange Dia.: 1-7/8"

WIDE APPLICATION: Blowout plug adapter fitting to winterize systems, RV, outdoor pipes, boat, watercraft, camper, water line, watercraft, garden hose, camper, and travel trailer by blow out method using an air compressor.

EASY CONNECTION: Compatible with the most common used air compressor quick-connect(1/4" Industrial Interchange Air Quick Connect Plug) and standard garden hose threading (3/4" GHT Female or Male) in the US. Quick-connect attaches to air compressor to winterize lawn sprinkler systems, faucets, and plumbing to prevent damage due to freezing.

LEAD-FREE MATERIAL: For your health and safety, our sprinkler winterizer is made of lead-free brass with frosted parts of the highest quality. Durability brass, solid and durable made assure it will last you for years.

Ideal stoppers for boat livewells, cooler compartments, and sinks

Perfect compliment to T-H Marine's overflow drain tubes

Marine grade PVC construction for long-life

Outside nut is secured to the threaded shaft with a deck plate key.Fit Type: Universal Fit

No threaded section protruding through the head or need for saws

Makes for a neat, finished installation

4-Year Warranty!!

Color: White

For 1-1/4" Hose

Cast bronze garboard drain with brass plug allows bilge to drain when a vessel is hauled out of the water

2 inch outside diameter

Fits ½ inch pipe

Boat drain plug,with screws

Drain plug kit,mounts in a 1.21" diameter hole

Garboard drain plug kit with captive plug means no more lost plug

Garboard drain plug kit is threaded boat plug with screws, AISI 316 stainless steel. Pack of 2 sets.

Boat garboard drain with stainless steel plug allows bilge to drain when a vessel is hauled out of the water.

Boat transom drain plug kit, fits 1 inch Hole, flange diameter is 2 inch, boat plug diameter is 1/2 inch NPT.

Can be easily connected to the hose.

Temperatures range from -40 to 160 F.

Connections: Hose Barb x Hose Barb x Hose Barb.

Package length: 4.5 cm

Package width: 5.0 cm

Package height: 28.0 cm

Package length: 7.7 cm

Package width: 14.6 cm

Package height: 28.9 cm

Efficiently drains water from self bailing cockpits

Designed to be mounted over existing thru-hull fittings up to 2 inch

Inlcudes retainer ring, screws, rubber flapper valve and gasket.

Hose Thru Fitting Drain Tube for For boat,marine,caravan,truck,automotive applications,motorwell, livewell, or baitwell.Ideal for use as an exhaust port for a bilge pump.

Maximum corrosion resistance and durability in the saltwater environment.Polished to a beautiful, mirror-like finish.

Flange O.D:1-3/8";Size:3/8"

This Five Oceans Thru-Hull Fitting Connection for Hose is ideal for scupper, sink drain, and bilge pump overboard discharge. Hose Diameter: 1-1/2 inches (38mm)

It is made of tough injection molded Polypropylene plastic that will resist sunlight, salt water, oil, gasoline and most common marine chemicals

Nylon plumbing fittings like this cost less than similar fittings made of Marelon or Bronze.

Whether it's a hole in the hull, mechanical failure, or a missing drain plug, TruePlug turns a potential disaster into a minor inconvenience.

One of the most common ways to sink a boat is a forgotten drainplug. The solution: always carry a spare TruPlug onboard to prevent a small oversight from becoming a total loss.

TruPlug conforms to the irregular and unpredictable shapes of most hull breaches, can be easily compressed by hand or cut to fit, and double as a floating key chain to keep it close at hand.

Creates reliable watertight seal

Fits 1/2 inch inside diameter thru hull

Cam action lever flips down to lock

High polished 316 stainless steel resists corrosion

Provides bilge drainage upon haul out. Retention system keeps plug from getting lost

Machined tapered pipe threads and o-ring ensure a water tight fit

Easily and reliably plugs drains on board

Insert Drain Plug into drain opening and turn the T-Handle clockwise to lock it in place

Turn the handle counter-clockwise to unlock it for easy removal

Protects: Helps protect your RV and boat plumbing, and hoses from high-pressure city water

Reduces Water Pressure: Reduces water pressure to a safe and consistent 40-50 PSI of operational pressure

Compatibility: Attaches easily to ¾-inch garden hose threads

Material: This boat threaded fitting is made of heavy-duty 316 stainless steel material, which is sturdy and durable.

Customized gasket is Easy to install

Flange O.D:2-1/8"(53mm);Thread Length:Approx: 1-5/8"（41.6MM） Barb Length: 1-1/8"

Designed for mounting through transom

Molded all white plastic

Check with manufacturer recommendations for proper fit

Package contents: you will receive 2 pieces of T-handle drain plugs, they are enough for your daily use and can be your nice helpers for marine work, they can also be your spare drain plugs on your boat, you can also share them with others

Reliable material: we adopt brass and rubber material for these twist-turn boat drain plugs, the plug is made of rubber and the handle is made of brass, which is strong and not easy to bend, the handle is not easy to get rusted, can serve you for a long time

Convenient to use: the T-handle rubber plug measures approx. 5 x 3.5 x 3 cm/ 2 x 1.4 x 1.2 inches, and the diameter of each plug is about 1 inch, it is suitable for 1-inch hole, the plug is about 40 g, very convenient for you to take on boats

MARINE LIFE

316 stainless steel garboard drain plug

Boat garboard drain plug kit

Boat drain plug fits salt water & UV resistant