Raincovo Foam Cannon R 2.0

The Raincovo Foam Cannon R 2.0 is a foam cannon sold by Raincovo on Amazon under ASIN B0GYYJKCW9. The model number on the listing is FMGW8. Everything on this page is read off that listing — the specification table, the bullets and the photographs are Raincovo's own, and the comparisons are against the rest of Raincovo's range rather than against a marketing claim.

It was in stock when we last checked, on 2026-09-11. Among Raincovo's foam cannons it is the sixth most-reviewed of 7.

Specification

Straight from the Amazon listing's own attribute table. Fields the seller has clearly filled in wrong — a "hose length" of one inch on a brass fitting — are dropped rather than reprinted.

What Raincovo says it does

These are the manufacturer's own claims, quoted from the listing.

Precision Foam Control with Refined Damped Knob

Designed for a more controlled washing experience, the top foam adjustment knob features a damped rotating feel with clear tactile and audible response. It helps prevent accidental setting changes while allowing you to fine-tune foam concentration more precisely, from lighter coverage to thick, clingy suds for deep cleaning.

Dual-Thread Cap for More Flexible Use

The upgraded bottle cap is built with two thread designs on the back, allowing it to connect not only with the included R 2.0 foam cannon bottle but also with compatible car wash soap bottles. This smart design makes refilling, mixing, and switching solutions faster and more convenient during car washing or detailing work.

Leak-Resistant Design with Check Valve

Built to solve common foam cannon leaking issues, the cap includes an integrated check valve to help prevent water or soap solution from leaking back or spilling during use. The half-turn quick-lock bottle neck lets you secure the bottle quickly without repeated twisting, creating a tight and stable seal that is less likely to loosen while washing.

Quick-Access Nozzle for Easy Foam Mesh Replacement

Unlike traditional fixed designs, the front nozzle can be quickly unscrewed and reinstalled, making it easier to access and replace the internal foam mesh when needed. This tool-free maintenance design helps keep foam performance consistent and makes post-wash cleaning simpler, especially for users who wash frequently or use thicker soaps.

Built for Durability, Stability & Easy Handling

Made with brass and stainless steel components, R 2.0 foam cannon delivers a solid metal feel while helping resist rust and wear. The metal-insert cap connection reduces thread wear and looseness over time. The 2.4" wide mouth makes pouring soap easier, while the 4.7" wide base helps improve stability and help prevent tipping, and dual grip indentations on the bottle make it easier to hold, fill, and handle.

Only Fits Pressure Washers

Specially engineered for pressure washer connection only; NOT compatible with standard garden hoses or household water faucets.

How it compares with Raincovo's other foam cannons

With 3.9★ from 42 ratings, 3 of Raincovo's 7 foam cannons with at least twenty ratings score higher: Snow Clear Foam Cannon, Snow Pro Foam Cannon, Foam Cannon Kit with Short Gun and….

How it connects

It needs a pressure washer. The listing says in so many words that it does not work on a garden hose or a tap: foam cannons rely on the pressure-washer's flow to pull soap through the orifice.

Raincovo's listings do not name the pressure washer brands they fit — Ryobi, Sun Joe, Greenworks and the rest are not mentioned. What decides fit is the connector on your gun, wand or pump. The Raincovo Foam Cannon Parts, Bottles and Orifices guide goes through it.

Questions