Black PE One-Way Valve - Heavy-Duty Plastic Backflow Prevention Fitting with Chrome Finish, Fit for Plumbing, HVAC & Industrial Use, One-Way Flow Control for Water, Gas, Steam
110mm PVC Backflow Prevention Valve - 75mm Drainage Outlet, Single Direction Check Valve with Locking Ring, White Plastic for Sewer System, No Direct Water Contact, Sewer Valve, System Protection, Modern Valve, Durable Construction
2pcs Mini Spring-Loaded One-Way Check Valves - Heavy-Duty Plumbing Valves with Backflow Prevention, for Industrial/Commercial/Residential Use - Compatible with NPT & G Threads - Compatible with Water, Gas, Oil, Steam - Durable PP/PE Construction, Fluid Control, Ribbed Texture Grip, Stainless Steel Finish, Industrial Valve, Threaded Connection, PE Material, Nonreturn Valve, Maintenance Professionals
Premium Brass Aquarium Check Valve - Anti-Backflow, Built-in Spring Design, Suitable for 1/2", 3/4", 1", and 2" Pipes - Durable Water Control System
1pc Premium Brass Check Valve for Aquariums & Irrigation Systems - Anti-Backflow, Durable In-Line Spring, 1/2" 3/4" 1" 2" Sizes, NPT Thread, Max 110°C, Ideal for Water Control
Brass Check Valve 1/2 inch, 3/4 inch, 1 inch Spring Backflow Preventer, Non-Return Horizontal Inlet Valve for Well, Pump, Tank, Anti-Backflow, Universal Connector Thread, Metal Construction with Included Teflon Tape
1pc Easy-Install Adhesive PVC Drain Pipe, 50-200mm, Self-Sealing Gravity Valve for Odor-Proof Backflow - Perfect for Kitchen Sinks, Floor Drains, Septic & Sewage Outlets
1pc/2pcs DN25 Internal Thread Connection with Filter and Backflow Preventer, NPT Thread Brass Bottom Valve High-end Pipeline Equipment, Ensure the Pump Starts and Filters Debris, Comes with a Random Color Filter Material
URTUE 100MM Round Smoke Pipe Backflow Preventer, Kitchen Exhaust Fan Duct Odor Valve, Non-Electric ABS Material, with Check Valve for Ventilation Systems
Heavy Brass Thickened Material Bottom Valve DN20, DN25, DN32, DN50 Internal Thread Anti-Backflow Check Valve with Hole Filter Screen Check Valve Filter for Well Jet Pump Bottom Valve
2/5/8/10pcs Transparent One-Way Check Valves With Red Diaphragm, Oxygen Pump Backflow Preventer, Tubing Connection, Aquarium Airline Accessories
Triple Lock Backflow Valve Single Direction Flow Valve Stainless Steel 304 with Silicone O-Ring
Anti-Backflow Valve Suction Full Valve - Brass 3/4 Inch & 1 Inch Hose Connection, Mesh Filter Suitable for Pool, Fountain, Garden Water Pipe - Prevents Backflow, Ensures Smooth Water Flow, Quick Connect Design, Durable Brass Material
Non-Return Suction Strainer Foot Valve - 3/4in & 1in Hose Connection, Mesh Screen Filter for Pool, Fountain, Garden Hoses - Prevents Backflow, Ensures Water Flow, Quickconnect Design, Durable Metal Strainer Mesh, US/EU Threads
1pc Shower Floor Drain Backflow Preventer - One-Way Valve, Odor-Proof Sewer Seal for Bathroom & Kitchen Pipes, Fits 3.81-4.39cm Diameter
5/10pcs Transparent One-Way Check Valves with Red Diaphragm, Oxygen Pump Backflow Preventer, Tubing Connection, Aquarium Airline Accessories, Without Battery
Odor-Proof & Leak-Proof Backflow Prevention Valve - Durable Plastic Sealing Ring with Waterproof Seal Plug Cover, Fit for Kitchen Sink & Bathroom Floor Drainage Pipes
1pc Brass Check Valve G1/2 Internal to G1/2 External Thread Anti-Backflow Single Way Toilet Plug, Suitable for Kitchen Faucet, Water Tower, Hot Water Heater and Bathroom Pipeline R
Galvanized Check Valve, Backdraft Damper-10.16cm/15.24cm/20.32cm/10in One-Way Airflow Vent Damper Backflow Preventer Duct Damper
20pcs One-Way Check Valves with Red Diaphragm - Aquarium/Pipe Connections, Backflow Preventer for Oxygen Pumps, Aquariums, Fish Tanks - Transparent Plumbing Valves (20 Count) - Ideal for Freshwater & Saltwater Systems, Aquarium Air Valves, Compact Design, Durable Construction, Pond Owners, Simple Installation, Sturdy Construction, Aquatic Enthusiasts
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