This part is compatible with the Williams 6003 gas valve and is frequently paired with the P501618 pilot assembly and P500086 orifice fittings

Can I use an aftermarket heat exchanger instead

Environmental Protection: Acts as a water-tight cable gland

Universal Application: Rated for both residential and light commercial 24-volt control circuits

As a non-PCB

ABB OT25F3 Disconnect 322838-754 This part is compatible withThe ABB OT25F3 Disconnect is a premier 3 pole non fusible disconnect switch designed for superior performance in demanding industrial and commercial environments. This 30 Amp front operated disconnect features a compact, modular design that is ideal for use as a motor disconnect, in service entrance equipment, or within industrial control panels. Built with finger proof construction and IP20 rated terminal shrouds, it significantly enhances workplace