Weathermatic® PRK-24 Pressure Regulating Kit includes: Regulator Adapter Assembly (120-10SA), Regulator Tubing Assembly (VMF-004SA), Exhaust Port Screw Round Head #2 x 3/8" (VMA-044), Regulator Control Assembly (120-15SA), Downstream Tubing Assembly (VMF-005SA). As you explore our products you will see how virtually every Weathermatic® product contributes to saving lives through our “Save Water. Give Life.” campaign.