Sale! Add to cart 3/8″ SIEVE | STAINLESS $300.00 $150.00 3/8″ FNPT- Molecular Sieve Filter Dryer Canister Save your system from the hazards of water retention. We assemble and pressure test all of our sieves ourselves, so you can be confident that you will receive a quality product that performs. This sieve weighs approximately 400 grams when full of dry zeolite. It should weigh approximately 610 grams when the zeolite is completely full of material.