All products engineered and manufactured by Allied Witan Company are constructed of corrosion-resistant materials for long life and low-maintenance performance.

The Atomuffler® product lines have available replacement filter elements (also referred to as disseminators), as noted in the appropriate information charts. Other replacement parts are also available.

All product connection sizes and dimensions are given in inches.

Male NPT National Pipe Thread Tapered
Male BSPT British Standard Pipe Thread Tapered (ISO 7-2:2000)
Female NPS  National Pipe Thread Straight

Alwitco®, Atomuffler®, and Bantam® are registered trademarks of Allied Witan Company


All products have a hex head, for easy attachment to exhaust ports. All products should be mounted in a protective position, free from excess vibration.


Allied Witan Company recommends that all its products be installed and used in an indoor, protected environment where temperatures range between 50-120° F. Should you choose, or if it is necessary, to mount and use Allied Witan Company products outdoors, attention must be given to avoiding freezing and/or icing conditions, and avoiding direct exposure to the elements (rain, snow, sun, wind, etc.).


Allied Witan Company products are sold through a wide network of original equipment manufacturers and distributors. Please contact your local representative for product details and purchasing, or contact us for a representative near you. If you and/or our distributor are unable to find a solution for your pneumatic muffler and filter requirements from this website or our catalog, please contact us directly. We will be pleased to work with you to meet your specific needs.