Description Manuals Videos Articles This is a replacement air pump part for a 1/2" CL type CAP-4 disconnect. Customers Also Viewed CAP-4 Inlet Filter Assembly #22452 $71.78 CAP-4 Ambient Air Pump w/ Frame #22530 $3,676.30 1/2" x 1/4" Brass Bushing #02706 $5.34