What is the difference in the pipe wrap products?
B-10 Lag is a 1 Lb psf loaded vinyl noise barrier featuring a reinforced foil facing which readily accepts a matching lag tape. This product is often used when a duct or pipe is already wrapped with a standard thermal insulation. B-10 LAG/QFA-3 is the same product as above with a one-inch thick quilted fiberglass decoupler bonded to the back of the noise barrier. The quilted fiberglass decoupler improves the overall noise reduction performance of the product. B-10 LAG/QFA-9 has the same B-10 LAG barrier as above with a two-inch thick quilted fiberglass decoupler bonded to the back of the noise barrier. The quilted fiberglass decoupler improves the overall noise reduction performance of the product, especially at lower frequencies. B-20 LAG has a 2 Lb psf noise barrier. B-20 LAG/QFA-3 has a 2 Lb psf noise barrier with a 1″ quilted fiberglass decoupler. B-20 LAG/QFA-9 has a 2 Lb psf noise barrier with a 2″ quilted fiberglass decoupler.