With blue 500psi spring & O-rings - For pressure Regulator 169-101. 
Used on: Hydramaster: Spitfire 3.2, Spitfire 4.0, Crossfire 3.7, Crossfire 4.2,
Crossfire 4.4, Profire 3.7, Profire 4.7, Bobcat 3.5, Aquac

(078-101)

Specifications

SKU 078-101
Brand Hydramaster
Shipping Weight 0.5000kg
Shipping Width 0.020m
Shipping Height 0.100m
Shipping Length 0.020m
Shipping Cubic 0.000040m3
Unit Of Measure Each