A range of different sized screw-on plumb-back (recirc) fittings to suit all universal blow-off valves.
Recirc outlet – male suit 19mm (3/4″) ID hose
Recirc outlet – male suit 25mm (1″) ID hose
Recirc outlet – male suit 30mm (1-1/8″) ID hose
Recirc outlet – male suit 32mm (1-1/4″) ID Hose
Recirc outlet – 38mm