This ASME stamped molecular sieve is ready for legal lab use. Place this unit after your collection vessel to remove unwanted moisture from your system. Effectively remove water from your system before it reaches your recovery pump or solvent tank. Please make sure to chose your compression fitting size to ensure the hemispherical caps align with your recovery lines. Each of these units comes with mesh Viton gaskets in addition to hemispherical caps! These butane and propane compatible molecular sieve comes standard with 1/2" compression, however we can customize this however you'd like. Just fill out a contact form.