This is a Pentair 155358 Tank and Foot Assembly with Buttress Thread, in black, for Tagelus TA60 Sand Filters. Tagelus Filter Models TA30, 35, 40, 50, 60 manufactured after Nov. 1, 1991, were manufactured with a buttress thread top opening and utilize a buttress style valve which is black in color. A change was made to the port arrangement in April 1993 which will require that minor changes be made to the valve plumbing connections when replacing valves on filters manufactured between Nov. 1991 and Mar. 1993. DO NOT ATTEMPT TO INTERCHANGE THREAD TYPES.
Tagelus Filter models TA30, 40, 50, 60 manufactured before Nov. 1, 1991 were manufactured with a V thread style valve that is white or brown in color. These valves may be replaced only with a V thread style valve P/N 261124. DO NOT ATTEMPT TO INTERCHANGE THREAD TYPES.