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
- Shipping is FREE to the contiguous United States.
- Our current lead times are 3-5 days for stocked standard filters, up to 3 weeks for non-standard and 0.5" filters, and up to 8 weeks for bag filters.
Delivery normally takes another 1-3 days depending on location.
- 30-day 100% return policy.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.