Search query: .5 female not fitting plastic

Product: PVC Bulkhead Fitting Double Threaded Bulkhead Water Tank Connector for Rain Barrels, Aquariums, Water Tanks, Tubs, Pools, Spigot, Black, 3/4 Inch Male 1/2 Inch Female (4 Pieces)
Features:
Essential tool:
The drain plug kit is a simple solution to flushing out the gunk that sits at the bottom of the rain barrel or water tank where dirt and slime can not be remove below the spigot level.
Double thread design:
The bulkhead fitting with double thread design can stably connect hose adaptor together. No doubt, it is necessary daily supply for family, helping you solve your daily problems.
Specifications:
Color: black
Material: PVC
Package included:
4 x PVC bulkhead fittings
Note:
Manual measurement, please allow slight size errors. What you will get: package comes with 4 pieces threaded bulkheads for rain barrels, water tanks, or aquariums, spigot and so on, bringing convenience to your daily life
Size information: the double threaded bulkhead fittings are 3/4 inch male and 1/2 inch female thread, which are applicable models fitting for most items; Please check the size before ordering
Quality material: the water tank connector threaded bulkhead is made of quality PVC material, which will not fade, crack, or peel, so it is durable to serve you for a long time, giving you good use feeling
Easy to install: first you need to drill a 25-26mm hole for installation, then assemble the PVC bulkhead and hose adaptor together; No doubt, it is easy to operate
Multi-functional tool: the threaded bulkhead will contour to the shape of the round barrels, maintaining your barrel with fresh rain water season after season; It is suitable for both commercial and industrial use Honoson

Product: Brass Garden Hose Adapter, 3/4” GHT Female x 1/2” NPT Male Connector,GHT to NPT Adapter Brass Fitting,Brass Garden Hose to Pipe Fittings Connect 2pcs (3/4” GHT Female x 1/2” NPT Male)
Specifications:

Type: 3/4” GHT Female x 1/2” NPT Male
Material: Brass \
Package Includes:
2*Brass Adapters
2*Rubber Washers Type: Standard 3/4 inch garden hose thread female to 1/2 inch national pipe thread male.
Garden hose thread: 3/4-inch GHT female a,National pipe thread: 1/2-inch NPT male,1/2 inch national pipe thread not garden hose thread, please note .
Heavy duty brass ensures no leaks due to deformation.With 2pcs extra Rubber Washer Donut shape conforms to all Hose connections to ensure a watertight seal.
Heavy-duty brass construction with rust proof, Easy to connect . Double Male Kit was made with precision process
NOTICE:If you have any problem with this product, you can just take advantage of our 180 days warranty. We will change or refund for any reason. Kbrotech