Spanet Smartflo 750W(1.0HP) Circulation Pump
SpaNet SmartFlo 750w(1.0hp) Circulation Pump
Pump comes complete with 40mm unions.
The SmartFlo range by SpaNet have split nut style unions which make retro fitting easy. You can cut the old nut out of the plumbing and simply fit the now split nut around the union tail piece.