Check the listing for details. Outlet Header Hold-Down Bracket Assembly - Mounting Solar Pool Heater Panels. Condition: New. Listed at 7.44 USD. The traditional mounting method for securing the top (outlet) header of pool solar panels. Each assembly includes a stainless steel bracket and hose clamp. Flashing Base (part #30340-1) sold separately. Compatibility: Will work with any solar pool heating system that has round 1.5” or 2" I.D. header manifolds and makes attachments with rubber hose type connectors. MEASUREMENTS, SIZING & PRODUCT DATA 1.9" (1-7/8") O.D. Header: For solar pool panels containing a 1-1/2″ I.D. header (1.5″ manifold I.D. / 1.9″ manifold O.D.) 2.375" (2-3/8") O.D. Header: For solar pool panels containing a 2″ I.D. header (2″ manifold I.D. / 2.375″ manifold O.D.). Manufacturer: Solar Pool Supply MPN: 10008 10008-1 (1.9" (1-7/8") O.D. Header) 10008-2 (2.375" (2-3/8") O.D. Header)