Abstract: An arrangement for filtering fluid flow includes a T connection having a hollow body connected with two aligned hollow lateral extensions. A plate is secured within and intersects the lateral extensions and has an opening therein to accommodate flow through the lateral projections. A filter member including a hollow core is positioned adjacent the plate and surrounds the opening in the plate for filtering flow through the lateral extensions. The filter member extends from the extensions into the body and is closed off at one end by a flange secured to the body.

Abstract: A T connection including a body and a pair of aligned laterally extending projections form fluid passage means. An annular flange is formed on one of the lateral projections internally thereof and a flange is formed on the other lateral projection externally. A hollow annular filter member is positioned in the lateral projections and abuts the internal flange at one end and is closed off at the other end by the external flange on the other lateral projection. The filter member includes a core formed of generally trapezoidal or triangular shaped metal wire or strip material which has in the trapezoidal form two parallel surfaces joined by converging side surfaces. The strip material is either helically wound to form coils or formed by a plurality of rings which are longitudinally spaced a predetermined amount and a plurality of circumferentially spaced reinforcing ribs are secured to the periphery of the core.