Manufacturers are very satisfied with the fact that they can purchase at this price Manufacturer products can also be used for specific hazardous substances restriction (RoHS), so they can be used with confidence. Particularly for impact resistant fittings (HI) 65 A or more It is not in the home center etc. We are reliant on placing orders freely.
This socket connects the 20 mm diameter commonly used for PVC pipe around agricultural house and the next widely used 16 mm diameter. HI's material is strong against shock and freezing, so the price is a little higher than the VP material, but I mainly use the HI person outdoor. Because it is a size that seems to have many opportunities to use most in the different socket, we purchase it extra as stock.
It is a sogore thing that can be changed with this single socket from 20 mm frequently used to 13 mm at a stretch, and it is a very convenient socket if you have one. It is more beautiful than it looks with a simple addition and a finish added.
This standard HI series (dark gray) is slightly higher in price than VP (light gray), but it is highly resistant to shocks and freezing, so it is useful for outdoor etc. in the midwinter. In the past it was connected by VP and water cracked due to freezing, it changed from the crack, and later changed to HI. It is still strong without problems.