Actual Size: 20 x 23.13 x .75. Accumulair brand: 21x23.5x1 American Standard TFP235A0AH11 compatible whole house air filters, exactly designed to substitute for the original manufacturer American Standard TFP235A0AH11 filters. Fully constructed with no assembly or combs required. MERV graded to ASHRAE 52.2 test ratings assuring particle filtration equal to the OEM American Standard TFP235A0AH11 air filters. Notice: The example filter picture as displayed is not to scale and is displayed for configuration purposes only. Trade names and American Standard TFP235A0AH11 part numbers used for filter substitution purposes.
Shipping and Returns
- Lead times vary and are listed at the top of the website. Non-standard sizes (custom, 0.5" thick, etc) take 3-4 weeks for delivery.
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- 30-day 100% return policy.
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