https://www.acehardware.com/departments/lawn-and-garden/outdoor-power-equipment/pressure-washer-accessories/1497080
Forney Screw Coupling 5800 psi Mfr# 75108 - Ace Hardware
Female Screw Coupling, M22F to 3/8 in. Female NPT. Connects to all of the most common pressure washer equipment in the industry and converts M22 metric thread...
screw couplingforney5800psimfr
https://www.lowes.com/pd/Sigma-ProConnex-1-2-in-Electrical-EMT-Die-Cast-Zinc-Set-Screw-Coupling-Conduit-Fittings-50-Pack/1086745
Sigma ProConnex 1/2-in Electrical (EMT) Die Cast Zinc Set Screw Coupling Conduit Fittings (50-Pack)...
Shop Sigma ProConnex 1/2-in Electrical (EMT) Die Cast Zinc Set Screw Coupling Conduit Fittings (50-Pack) TC-511 in the Conduit Fittings department at Lowes.com
https://www.acehardware.com/departments/lawn-and-garden/outdoor-power-equipment/pressure-washer-accessories/1035810
SurfaceMaxx M22 Female x 1/4-in Female NPT Screw Coupling 5800 psi Mfr# SMX-PWA309 - Ace Hardware
Easily connect your pressure washer components with the SurfaceMaxx M22 Female x 1/4-in Female NPT Adapter. Designed to join 1/4-in male NPT threaded...
https://www.acehardware.com/departments/lighting-and-electrical/boxes-fittings-and-conduit/conduit-connectors/30397
Sigma Engineered Solutions ProConnex 1 in. D Die-Cast Zinc Set Screw Coupling For EMT 1 pk Mfr#...
The Sigma ProConnex EMT Set Screw Couplings are used to connect two lengths of steel EMT conduit. These die-cast couplings are suitable for indoor applications...