Best Shock Arrestors for Washing Machines: Quieting Pipes and Stopping Water Hammer
Washing machines can cause noisy taps and banging pipes when water pressure surges. A reliable water hammer arrestor helps absorb shock, protect fittings, and keep laundry day peaceful. This guide highlights five top-rated arrestors that fit standard 3/4 inch connections, offering varied materials and installation options for American homes. Each pick emphasizes durability, ease of installation, and effective dampening of water hammer and vibration.
| Product | Brand | Key Benefit |
|---|---|---|
| SUNGATOR Washing Machine Water Hammer Arrestor (2 Pack) | SUNGATOR | Stainless steel, 250 PSI, 180°F max |
| (Pack of 2) EFIELD Water Hammer Arrestor | EFIELD | 3/4″ FHT x MHT, swivels, versatile |
| (2 Pack) Lidertik Washing Machine Arrestor LI-Y241-11-11-A | Lidertik | 2 pieces, 3/4″ male/female threads |
| Watflow Water Hammer Arrestor 3/4″GHT | Watflow | 2 pcs, non-corrosive design |
| (2 Pack) Lidertik Washing Machine Arrestor LI-XYJSC-BXG-A | Lidertik | 2 pieces, stainless steel chamber |
SUNGATOR 2-Pack Water Hammer Arrestor
The SUNGATOR arrestor uses a straight stainless steel chamber with 3/4″ GHT connections, suitable for washing machine supply lines. It supports a maximum working pressure of up to 250 PSI and temperatures up to 180°F. The device helps prevent pipe movement and reduces noise by using an internal air piston to dampen water hammer. This 2-pack provides a straightforward, durable solution for common home washer setups and can also be used with garden hoses or outdoor spigots as needed.
EFIELD Stainless Steel Water Hammer Arrestor
The EFIELD arrestor features 3/4 inch female swivel hose thread to 3/4 inch male hose thread, designed to accommodate washing machine supply valves and direct connections. Rated to 250 PSI, it can be installed horizontally or vertically, giving flexible installation options for tight laundry spaces. This two-piece set focuses on quick, dependable installation with robust stainless steel components for long-term durability in typical residential plumbing.
Lidertik LI-Y241-11-11-A Washing Machine Arrestor (2 Pack)
This 2-pack features 3/4 inch male and female threads, designed for easy installation on washing machines and outlet boxes. It aims to solve water hammer issues by absorbing shock and reducing noise, helping to protect both washers and water supply lines. The design emphasizes straightforward setup and compatibility with standard 3/4 inch plumbing fittings in typical American homes.
Watflow Water Hammer Arrestor 3/4″GHT (2 Pack)
Watflow’s arrestors are designed to prevent water hammer noise and absorb shock and vibration, protecting plumbing systems. They feature 3/4″GHT connections (F x M) and are rated up to 250 psi with a temperature range from 33°F to 180°F. This two-pack provides a reliable, compact solution for laundry hookups and adjacent fixtures where hammering is an issue.
Lidertik LI-XYJSC-BXG-A 2 Pack (Stainless Steel Chamber)
This Lidertik model emphasizes a stainless steel chamber and two washers per box, offering robust resistance to corrosion and wear. It is designed for seamless integration with 3/4 inch male and female threads, making it compatible with most washing machine connections and garden hose setups. The kit aims to minimize water hammer while preserving flow and pressure in household plumbing.
Lidertik LI-XYJSC-BXG-S 2 Pack (Stainless Steel)
This variant maintains the stainless steel chamber design with two pieces per box and 3/4 inch male and female threads. It focuses on absorbing shock and reducing noise for washing machines and garden taps, delivering consistent performance across standard 3/4 inch plumbing connections in modern homes. The double-pack format helps cover dual supply lines where hammering is most apparent.
Buying Guide: Key Purchase Considerations
- Connection type and size: Most residential washing machines use 3/4 inch GHT/ FHT threads. Verify that the arrestor’s female threads match your supply valve and that the male thread will connect to the hose or stub-out.
- Material and durability: Stainless steel bodies resist corrosion and scale build-up, extending service life in humid laundry areas. Some models pair stainless bodies with brass fittings for long-term reliability.
- Pressure and temperature ratings: Look for arrestors rated for up to 250 PSI and temperatures up to 180°F for washers in typical U.S. homes. Higher ratings provide greater headroom for spikes.
- Installation orientation: Swivel or horizontal/vertical installation options offer flexibility in tight laundry closets or above-washer setups.
- Number of pieces per package: If you’re outfitting multiple lines (washer, outdoor spigot, and garden hose), consider multi-pack options to reduce shopping time and ensure uniform performance.
- Noise reduction performance: Arrestors with internal air pistons or robust dampening mechanisms tend to suppress knock better, especially in multi-story homes.
- Warranty and replacement parts: Check for easy access to seals and gaskets and whether the manufacturer offers replacement components if needed.
- Warranty compatibility with existing plumbing: Ensure the product is compatible with standard 3/4″ plumbing fittings and the garden hose interfaces used in your home.