This barbed fitting is primarily used to connect 1/2" vinyl tubing to various places within the circulating/heating system or jets in a Hot Spring & Tiger River spa It simply glues into a 1/2" PVC coupling or elbow with regular PVC cement

Barbed adapter which is 1/2" male threads on one end and 1/2" barbed on the other

This barbed fitting is primarily used to connect 1/2" vinyl tubing to various places within the circulating/heating system of Hot Spring spa models

This barbed adapter is used in various places but primarily in the Moto-Massage niche for the small silicone Moto-Massage Jet air tube to slip onto on pre-1997 Hot Spring spa models

This is a PVC adapter that has 1/4" male threads on one end and 3/8" barbed on the other   Allows a 1/4" female fitting to be adapted to 3/8" tubing that has no fitting on the end

This barbed adapter has a 1/2" barbed fitting on one end, and a 1/2" male pipe thread fitting on the other end   Then on the side of it, it has a 1/4" barbed fitting

Barbed adapter 3/4 in x 1/2 spigot

Barbed adapter 3/8 in x 3/4 spigot