Best Four Seasons Valves in 2026

Single lever controls cold and hot water flow from the water supply to the flexible hoses feeding a washing machine

Eliminate pressure on supply hoses and prevent potentially damaging results of a burst water hose

Ball-type design also allows lever to be opened to any position to control water flow

Guards against excessive pressure in water, oil or air systems used in commercial, residential or industrial applications, including fire protection systems

All-brass construction features an NPT threaded male inlet and NPT threaded female (drain) outlet connections; a stainless-steel spring; a brass bonnet; a Buna-N disc and a Buna-N O-ring

Calibrated adjustment feature sets valve to the required relief pressure

Watts LF7R Series Dual Check Valves prevent the reverse flow of polluted water from entering into the drinking water supply at the service entrance or at individual outlets. They are designed for non-health hazard residential water system containment and continuous pressure applications.

The valves consist of a Lead Free cast copper silicon alloy body construction, with two compact replaceable plastic check modules, and stainless steel springs. They are installed immediately downstream of the residential water meter, in a vertical or horizontal position. Check with local inspection authorities for installation requirements.

Features: Tested and certified by NSF. The Watts LF7RU2-2 Model 0072203 Dual Check Valve has been tested and certified by NSF to meet NSF/ANSI standard 61 Annex G. This certification demonstrates that this valve meets the lead-free qualifications. Extremely Durable and Prevents Backflow. The Watts LF7RU2-2 Model 0072203 Dual Check Valve is extremely durable. Not only does this valve prevent backflow, but it also can withstand temperatures up to 180° F and work with pressures up to 175 PSI.

Bronze body construction includes machine flange on the inlet side.

Features a 3/4 inch female NPT pipe threaded inlet connection.

Features male straight-pipe threaded outlet connection for locknut.

Machined flange

Bronze body

Serrated arms

Watts Marine Bronze Full Flow Ball Valves are UL Marine approved and manufactured from 85-5-5-5 naval bronze. The Watts Marine ball valves feature a heavy duty stainless steel handle and hardware for the best corrosion resistance. All valves are pressure rated to 600psi and incorporate PTFE stem packing seals and seats and are 100% tested in both the open and closed position.

Features: Constructed of 85-5-5-5 naval bronze PTFE stem packing seals and seats Corrosion resistant stainless steel handle and hardware Drain plug for winterization Vinyl insulator on handle Grounding screw

Adjustable stem packing gland Blow out proof pressure retaining stem Fast quarter-turn (open or close) operation Low operating torque No lubrication required UL listed

1/2" Sweat x Sweat Solder Connection (CxC)

Lead Free Brass Construction

2-Piece Full Port

<b>Price For:</b> Each <b>Inlet Type</b>: MNPT <b>Temp. Range</b>: 0 Degrees to 180 Degrees F <b>Outlet Size</b>: 1/2" <b>Spring Material</b>: Stainless Steel <b>Overall Height</b>: 3" <b>Disc Material</b>: Buna-N <b>Application</b>: Fire Protection Systems <b>Pressure Range</b>: 50 to 175 psi <b>Overall Length</b>: 1-5/8" <b>Body Material</b>: Brass <b>Standards</b>: ANSI Z21.22 <b>Outlet Type</b>: FNPT <b>Test Lever</b>: No <b>Factory Set Pressure</b>: 175 psi

<b>Inlet Size</b>: 3/4" <b>Seat Material</b>: Buna-N <b>Item</b>: Calibrated Adjustable Relief Valve <b>Item</b>: Calibrated Adjustable Relief Valve <b>Pressure Range</b>: 50 to 175 psi <b>Standards</b>: ANSI Z21.22 <b>Country of Origin (subject to change)</b>: United States

Forged lead free brass body

ASTM F1960 PEX expansion fittings for installation into PEX tubing

Blowout proof stem and o-ring seal

Lead Free forged copper silicon alloy construction for compliance

The stem O-ring is made of fluorocarbon elastomer for optimum prevention against leaks

The stem packing gland is adjustable for longer life

Lead free forged brass body for compliance

ASTM F1960 PEX expansion fittings are designed for quick and easy installation into PEX pipe

Crimp connection rated to 160psi at 73°F (23°C)