LC Female to ST Male Single-mode Fiber Adapter - FS.com
PVC Conduit Female Adaptor 20mm White | Toolstation
DURA 1 in. Schedule 40 PVC Female Adapter C435-010 - The Home Depot
Brass Pipe Fittings, Water Hose Adapter, G 1/2 Female to G 3/8 Male Reducer Adapter, Compression Fitting for Kitchen Bathroom Faucet, Pipe Connector with Rubber Washer,(2 Pack) - Amazon.com