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Gray 25 ft cold water hose with brass M22 fittings

Simpson

Simpson 40225 Cold Water Hose 5/16 in 25 ft M22 Fittings

SKU CH-KSJY-C2H9C

Cold-water pressure-washer hose, 5/16 in. bore, 25 ft long, 3,700 psi rating, M22 brass fittings

  • Withstands 3700 psi for demanding cleaning tasks
  • 25 ft length gives extended reach around work areas
  • M22 brass fittings ensure secure, leak-free connections
  • Polyurethane cover resists abrasion for longer service life
  • 5/16 in diameter maintains strong water flow

Cold-Water Hose 25 ft M22

This 25 ft cold-water hose is built for pressure-washer owners who need a replacement or spare line rated for 3,700 psi at 70 F. The gray polyester tube and polyurethane cover handle standard residential and light-commercial cleaning tasks. Brass M22 fittings on both ends — one female, one male — thread directly onto compatible Simpson guns and pumps. It is not suited for hot-water machines or applications that exceed the stated pressure rating.

Check Fitting Threads and Pressure Rating

Verify that your pressure washer uses M22 connections with a 5/16 in hose bore before ordering. The female and male ends are both sized for 5/16 in, so mismatched threads will not seal. Confirm the pump’s maximum working pressure does not exceed 3,700 psi at 70 F; higher pressures can rupture the hose. The hose is restricted from sale in California due to Proposition 65 chemical warnings for cancer and reproductive harm.

Coupled Assembly Ready for 33M596

The hose arrives as a coupled assembly with brass M22 fittings already crimped, so no separate clamps or ferrules are required. It is listed for use with the 33M596 accessory, meaning the fittings align with that component without adapters. The polyurethane cover resists abrasion during drag-across-concrete work, while the polyester tube keeps the hose flexible in cold water. No additional tools or sealants are needed for installation.

Highlights

  • Withstands 3700 psi for demanding cleaning tasks
  • 25 ft length gives extended reach around work areas
  • M22 brass fittings ensure secure, leak-free connections
  • Polyurethane cover resists abrasion for longer service life
  • 5/16 in diameter maintains strong water flow

Specifications

BrandSIMPSON

Questions about this item

Does the Simpson 40225 hose come with both M22 fittings already attached, or do I need to buy couplers separately?

The 25 ft cold-water hose is supplied as a coupled assembly with a female M22 fitting on one end and a male M22 fitting on the other, both brass and sized for 5/16 in hose, so no extra couplers are required.

The listing shows only one length and diameter; are there other versions of the 40225 I should consider?

The 40225 is offered in a single 25 ft length with a 5/16 in inside diameter and gray polyurethane cover; no alternative lengths, diameters or colours are listed for this model.

What does the 3,700 psi rating mean when the hose is connected to my pressure washer?

At 70 °F the hose is rated for a maximum working pressure of 3,700 psi, so it will safely handle the output of compatible Simpson pressure washers such as the 33M596 without bursting or leaking.

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