SIMPSON MorFlex 80391 — 30 ft pressure washer hose

1/4-inch inside diameter · rated up to 3,300 PSI · cold-water use.

30 ft3,300 PSI1/4 in ID

This 30-foot, 1/4-inch MorFlex is a shorter-reach option in the 3,300-PSI class. Compare your washer’s operating pressure and M22 connector insert dimensions before ordering. A matching thread diameter does not prove a matching seal.

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Specifications at a glance

Brand	SIMPSON
Model	80391
Product line	MorFlex
Length	30 ft
Inside diameter	1/4 in
Maximum pressure	3,300 PSI
Water application	Cold
Connection family	M22 threaded — confirm insert size and seal
Maximum temperature	140°F (manufacturer MorFlex specification)

Manufacturer-sourced information. Verify exact product variant and fittings before ordering.

What to know about this hose

The SIMPSON MorFlex 80391 is listed as a 30-foot hose with a 1/4 in inside diameter and a maximum pressure rating of 3,300 PSI. The points below explain the buying decisions these published specifications raise; they are not a claim of fitment with any particular pressure washer.

Plan your working reach

The 30 ft length sits between the 25 ft and 40 ft options in this catalog. Measure the route from your washer to the farthest work area, allowing for bends and safe routing, rather than choosing by length alone.

Check hose diameter

This model uses a 1/4 in inside diameter. Do not assume it is interchangeable with a 5/16 in or 3/8 in hose solely because the end fittings look similar. Confirm your washer manufacturer’s hose requirements.

Verify both end connections

The listing identifies an M22-threaded connection family. M22 threads can have different internal insert dimensions and seals; verify the precise connector configuration at both ends and whether your washer needs an adapter. An M22 label alone is not a fit guarantee.

Respect water and temperature limits

This listing identifies cold-water use and gives a maximum temperature of 140°F (manufacturer MorFlex specification). Do not use it for hot-water operation without explicit manufacturer approval.

Compare a meaningful alternative

The 40224 is a 25 ft, 1/4 in option with the same listed 3,300 PSI rating; compare the reach and exact fitting configuration.

View SIMPSON model 40224 specifications →

What to check before buying

Compatibility is not confirmed for your machine. Match the pressure rating, operating temperature, hose fitting type, fitting insert/seal dimensions, and the manufacturer’s washer-specific guidance. Do not infer fitment from thread name alone.