Flange Bolt Hole Size 0.5 in Compatible Pipe Size 1 in Compatible with Brand Bell and Gossett Compatible with Series LR NBF NRF PL-100 PL-36 PL-55 PR Series 100 SSF Wet Rotors PL-30 Compatible with Series Family 100 HV LR PL PR Flange to Pipe Connection Type Sweat For Use With Potable Systems No Flange Type Standard Number of Mounting Holes 2 Valve Type Ball Compatible with Manufacturer Model Number 36-45 55-45 XL 20-35