Think it's a pgt door not sure

Question

No markings just the lock mechanism on the inside handle

Tom · Accepted Answer

Hello! Thanks for contacting us. This appears to be a fairly typical patio glass door handle. I think our 82-030 set can replace this, but only if your existing screw holes are 3-15/16" apart, center-to-center. Make sure to check that measurement before you buy anything just to be safe.

Hole center dimensions for 82-030