541 Egg Timer Softener Valve.
541-030 * DISCONTINUED by Manufacturer 09/01/2020
Replacement Valve comes set up for a 1.05" distributor.
And includes at no charge new Top ( 287-166 ) and Bottom ( MD1236 ) Distributors.
Also a NOTE about the Drain Port ( since 2019 ) =
Only made with BSP ( British Pipe Threaded ) opening, and therefore now includes a barbed elbow fitting.
The fitting threads into the drain port, and allows the use of 1/2" I.D. ( 5/8" O.D. ) drain hose.
Also, we have been told you can use 1/2" NPT fitting if you use a lot of Teflon Tape.
This is a non-pressurized connection, so you can get it to "hold" with a lot of Teflon Tape ( when using 1/2" NPT male fitting ).
Be sure to select piping adapters unless you already have this type of Erie Valve, and will be re-using your old adapter fittings.
For manufacturer's product manual, see:Manual for 541-030How To Replace Your Old Valve Guide