... , 19g, 21g, and 23g Tea filter paper inside diamet Tea filter paper series featuring fine filtration, tensile strength and wet tensile strengthThe product quality ... polypropylene, a combination of both and/or co-polymers to provide the sealable layerTea filter paper weight range between 12.5g- ... as 12.5g, 16.5g, 18g, 19g, 21g, and 23gTea filter paper inside diameter is 7.6cm, external diameter is 40cm ...