The Peterson Fluid Systems R4 -20 fitting is a heavy‑duty CNC‑machined, anodized fitting sized for -20 lines in the R4 family. Designed with a shallow screw‑in profile to reduce installed depth and weight, it provides a machined, durable connection for larger plumbing demands. It pairs with Peterson’s R4 components to support high‑flow fluid routing applications.

Peterson Fluid Systems Fitting R4 -20