Our brass well cylinders are fully NSF61 compliant.  All Midland & MIDCO products and components are fully compliant with NSF 61 Annex G Standard 372 - Safe Drinking Water Act & Public Law 111-380, the “BUY AMERICAN” section 1605 of the ARRA, Conflict Minerals Requirements, and Recycled Materials
Certifications.

All brass Heavy Barrel #852 (Deep Well) open top cylinders are made with 10 Gauge (.187 wall) seamless brass tubing; available with solid bronze BALL STYLE CHECK VALVES or SPOOL valves . Select 3 leathers or 4 leathers on your plunger valve. Plungers are tapped in bottom so they can screw onto the check valve for easy removal. The #852 caps are not interchangeable with #449 barrels. Longer strokes are available upon request.

3” female iron pipe thread on top Plunger tapped for 7/8” rod thread 48” overall length of cylinder allows up to 32” stroke. Replacement 4 leather plunger assembly

All brass Heavy Barrel #852 (Deep Well) open top cylinders are made with 10 Gauge (.187 wall) seamless brass tubing; available with solid bronze BALL STYLE CHECK VALVES or SPOOL valves . Select 3 leathers or 4 leathers on your plunger valve. Plungers are tapped in bottom so they can screw onto the check valve for easy removal. The #852 caps are not interchangeable with #449 barrels. Longer strokes are available upon request.