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This document contains technical specifications for sheet metal filter protectors for fiberglass home heating oil tanks issued by the State of Maine. The specifications detail the design and fabrication requirements for filter protectors used on double-wall tanks, including photographic references and engineering drawings to guide manufacturers. The document clarifies that certain components—specifically the nut on the roof of the filter protector, threaded rod, and split ring clamp—remain the responsibility of parties other than the fabricator. Notable design modifications are referenced, including a slot added after fabrication on certain units, with specifications indicating that the top of the slot should be positioned higher above the "floor" of the filter protector than shown in the provided photographic examples.

The document serves as a reference guide for bidders responding to Maine's bid purchase of filter protectors and includes multiple images and technical drawings on subsequent pages to ensure clarity and standardization of the finished product. No pricing information, delivery schedules, bid deadlines, quantities, contract term, set-asides, or award details are contained within this technical specification document.