The Autotrol 1010154 O-ring (AS568-338) creates a reliable hydraulic seal at the top of 43F mineral tanks, preventing leaks at the control valve interface. This nitrile rubber o-ring measures 3 1/8" ID x 3 1/2" OD with a 3/16" cross-section, engineered specifically for Autotrol water treatment systems.
SPECIFICATIONS
Technical Details
| Manufacturer Part Number | 1010154 |
| AS568 Dash Number | AS568-338 |
| Inside Diameter (ID) | 3 1/8 inches |
| Outside Diameter (OD) | 3 1/2 inches |
| Cross-Section (CS) | 3/16 inches |
| Material | Nitrile rubber (Buna-N) |
| Application | Top of 43F mineral tank |
| Compatible Valves | Autotrol 440i, 460i series |
INSTALLATION & USE
Replacement Procedure
- Depressurize the system and disconnect the control valve from the mineral tank by loosening the mounting hardware.
- Remove the old o-ring from the tank neck groove and clean the seating surface thoroughly to remove any debris, scale, or residual rubber.
- Lubricate the new Autotrol 1010154 o-ring lightly with silicone grease and seat it evenly in the tank neck groove, ensuring no twists or folds.
- Reconnect the control valve to the tank, torquing fasteners evenly in a cross pattern to compress the o-ring uniformly and create a watertight seal.
- Pressurize the system slowly and inspect the seal area for any signs of leakage before returning to full service.
COMPATIBILITY
System Applications
This o-ring is designed for Autotrol 43F mineral tanks paired with 440i and 460i series control valves. It provides the primary seal between the valve body and tank opening in residential and commercial water softeners, iron filters, and carbon filtration systems. The AS568-338 size is standard for many Autotrol mineral tank configurations, but always verify your existing o-ring dimensions before ordering to ensure proper fit and seal integrity.
🔧 Keep a spare 1010154 o-ring on hand whenever you service an Autotrol system. Once removed, these o-rings often lose their shape and sealing ability, and reusing a compressed o-ring is the most common cause of post-service leaks at the tank-valve interface.
