Multiply PSI x GPM to get "Cleaning Units." A 2000 PSI / 1.2 GPM machine (2400 CU) is significantly weaker than a 2000 PSI / 2.0 GPM machine (4000 CU), even though the PSI is the same. 2. The Great Debate: Electric vs. Gas

If you have a massive driveway or a two-story house, gas is king. They offer much higher power (3000+ PSI) and portability since you aren't tethered to a cord. The downside? You’ll have to deal with oil changes, winterizing, and noise. 3. Reading Between the Reviews

Check if the machine uses standard M22 fittings. Some budget brands use proprietary connectors, meaning if a hose breaks, you can’t just run to the local hardware store; you’ll have to order their specific part online and wait. 4. Shipping and Returns: The Practicality

This is the "stripping" power. High PSI is great for deep stains on concrete or stripping paint.

The biggest advantage of buying online is the peer data, but you have to filter it.

Buying a pressure washer online is a classic modern dilemma: you’re caught between the convenience of home delivery and the anxiety of not being able to "kick the tires" on a machine that’s supposed to blast years of grime off your driveway. 1. The Power Specs: PSI vs. GPM

A rotating tip that offers the power of a 0-degree nozzle with the coverage of a 25-degree fan.

Most stock hoses are 20–25 feet, which is frustratingly short. A 50-foot steel-braided hose is a game-changer. Final Verdict