Hi Kitty, Just in case you didn't notice, although his RWD post didn't indicate it, Randy's pic shows a 700/900 heater control valve that lives between the back of the block and firewall as opposed to the 140/240 ones between the interior firewall and blower housing by the gas pedal.. The new 700/900 ones sold as Genuine Volvo look exactly like the ProParts Sweden ones which are considerably less expensive. It wouldn't surprise me if they're from the same mfr.

The 140/240 ones went through a couple of iterations of design. The Wagonmaster ones look solid. I much preferred the original Volvo design with the thermal sensor coil and an adjustable saddle screw. Those could maintain cabin temp much more consistently, making the temp control almost a set and forget for most of the year.
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Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now