Replacement Rubber connectors straight and elbow for Hiblow (and other) Linear Diaphragm Air Pumps

Between these two connectors you can fit almost any air pump to common fittings and manifolds.   

The Black Rubber Elbow connection which comes with two wire hose clamps has the inside diameter of 18mm  or 0.71 inches.   It fits Hiblow HP-20 through HP-120 air pumps and other models and brands with similar 18mm outside diameter connection points.    These versatile rubber elbows are very elastic and can be clamped to fit 1/2" or 5/8" barbs and stretched to even fit over 3/4" barbs.  It will also slide over the outside of weighted 3/8" ID airline tubing and can be clamped over it directly.

The Black Rubber Tapered Straight Adapter which comes with two different sized wire hose clamps has an inside diameter of about 3/4 inches.   It fits Hiblow HP-150 through HP-200 air pumps and other models and brands with similar 3/4" outside diameter connection points.    These versatile rubber tapered straight adapters are very elastic and can be clamped to the pump on the large end and will clamp to a 1/2" or 5/8" barb and cut shorter (higher on the taper) to fit over 3/4" barbs.