At the place of attacment, measure the body of your unit W x H Decide what diameter connection(s) to put on it. This particular RAA is described like this: 28 x 17 1/2" x 18 (duct connect). it is attached to the unit with screws quickly and easily it is easy to seal to the unit with tape the flex ducts or pipe slip over the connections Buy it now on EBay for $49.95 shipping included!

This RAP can be made to fit most makes and models of air handlers and furnaces...
Trane, Carrier, Goodman, Ducane, McQuay, Honeywell, Ruud, Bryant, American Standard, Lennox,
Amana, Rheem, G.E., York, Heil, Payne, Janitrol, Coleman, Whirlpool, Weather King, & Comfortmaker

PLEASE NOTE: THIS IS A DISCLAIMER OF ALL LIABILITY You must accept it, evidenced by sending a copy to us by email. The buyer acknowledges and demonstrates that he is aware that several factors have an influence on the performance of HVAC equipment, not just the return air plenum. No claim is being made regarding your results with this product. By purchasing this product the buyer indeminfies and holds harmless the owners, managers, and employees of Return Air Plenum Dot Com their vendors and sub contractors against any and every possible negative outcome that might arise from using this product including but not limited to, cuts, scrapes, accidental electrocutions, explosions, fire, damage to property, ego, personal satisfaction, or loss of life and limb. The product is intended only for HVAC professionals. However its installation is so simple, any competent do it yourself homeowner mechanic, with a few tools common to the HVAC trade ... can install it. This is a custom manufactured product and returns are not permitted, refunds are not given. Echoes Return Air Plenum reserves the right to change any information about this product, its design, configuration, materials, method of manufacture and price without prior notice, obligation or liability.

HOW TO ORDER A RETURN AIR PLENUM Measure the width of the unit (horizontal) at the place of RAP attachment. Measure the height of the unit (vertical) at the place of RAP attachment. State your wanted diameter at A - B - C - D. How to order a Return Air Adaptor Measure the width of the unit (horizontal) at the place of RAA attachment. Measure the height of the unit (vertical) at the place of RAA attachment. State the connection diameter(s). RAA - 28 x 14 1/2" x 14 x 14 ---- $30. Freight estimate ------- $30 make check payable to: PFFK, LLC POB 1562 Friendswood, Texas 77549