D.,

 

If your pressure switches are the VEP internal adjustable type, you may want to consider getting the newer style from Vern at Lancair.

 

I sent my early ones to VEP to get them upgraded to externally adjustable.  Turns out they were not the style that could be upgraded.  The expense at that point was $90 for their testing of them, at which point they said my switches were not any good (too long unused) even though they were still new and in the padded envelopes.  And, if I purchased the new external adjustable switches, they would waive the $90 testing fee.  Their switches cost several hundred dollars for both. (don't recall the exact amount)  So, since I was already in it the testing fee, I purchased their newer VEP switches.  Otherwise I would have gotten the newer style (not VEP's) from Vern, as they are significantly less expensive.  Note, there is an adapter fitting for each switch to fit the newer style that Vern has.  He also has the fittings.

 

Gary Edwards

N21SN LNC2