I'm looking for a 1/2" flange to use with schedule 40 pvc but can't find it. will this fit schedule 40 as well?

The diameter of the schedule 80 and schedule 40 PVC pipes is the same, so for this flange, they are interchangeable. Schedule 80 pipe has a thicker wall and is designed for higher pressure. Both will fit nicely into this flange and can be glued using PVC glue.

what is the inside dimension of the 2-1/2 inch slip socket?

The outside diameter of a standard 2-1/2 inch pipe is 2-7/8 (2.875) inches. So, the inside diameter of the slip socket should be about that (or just very slightly more). HTH

ASIN	B008O1Z3JU
Best Sellers Rank	#352,115 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10,653 in Pipe Fittings
Brand Name	CAI - GF PIPING SYSTEMS
Color	Gray
Connector Type	Slip Socket
Customer Reviews	4.4 4.4 out of 5 stars (9)
Exterior Finish	Grey
Item Dimensions	9 x 9 x 2.8 inches
Item Weight	2 Pounds
Manufacturer	CAI - GF PIPING SYSTEMS
Material Type	Polyvinyl Chloride
Model Number	854-040
Number of Pieces	1
Size	4 Inch
Thread Size	4 inch
UPC	696333389808
Unit Count	1.0 Count

GF Piping Systems PVC Pipe Fitting, Van-Stone Flange, Schedule 80, Gray, 4" Slip Socket

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