Filters Types Gas and Hydraulic; 1/4″ to 1 1/2″ Stainless Steel or Aluminum 3000/6000/10000/15000 Inline and Tee Type Erbe Engineering; 1/4: to 16″ Custom Filters High Pressure Filters Inline and Tee Type Mfgs. Norman Filters Erbe Engineering High Pressure Mini Tee-Type High Pressure Mini Tee-Type High Pressure Mini Tee-Type High Pressure Mini Tee-Type U-115 Series 6,000 psi, 10,000 psi, 20,000 psi models shipping from stock Now rated up to 30,000 psi cleanable & reusable elements