Flange, Bolt Hole Size 0.5 in, Compatible Pipe Size 3/4 in, Compatible with Brand Bell and Gossett, Compatible with Grainger Part Number 3NVG4, 4JA83, 4JA84, 4RD04, 4YM17, Compatible with Series 100, Ecocirc XL, NRF-33, NRF-36 PL-30, NRF-9F/LW, PL-36, PL-55, PR, PR NRF-22, Series 100, Compatible with Series Family 100, Ecocirc XL, NRF-33, NRF-36 PL-30, NRF-9F/LW, PL-36, PL-55, PR, PR NRF-22, Series 100, Flange to Pipe Connection Type FNPT, For Use With Potable Systems No, Flange Type Standard