Product review (1 stars): Inside diameter is ridiculously tiny.
The ID (inside diameter) at the connectors is about 3/16 of an inch.  That is less than a quarter inch opening.  It will take forever to fill my Kenmore washing machine.  Yes - the coupling will screw on to the washing machine but that tiny hole that the water has to pass through on each end will slow down the flow of water (amount per minute) in the washer significantly.  The pressure will remain the same but the amount of water per minute to fill the machine will be reduced radically.  It will take about twice as long as normal to fill my Kenmore washer.  There are two fill cycles and the rinse cycle so the whole process of laundry will take about twice as long.
  This is like filling a swimming pool with a drinking straw - it will take forever.  I purchased&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Certified-Appliance-WM60SS2PK-Washing-Machine-Hose-2-Pack-60-34-Stainless-Steel/dp/B01BRU4VCO/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Certified Appliance WM60SS2PK Washing Machine Hose (2 Pack), 60", Stainless Steel</a>&nbsp;and found that they have a 5/16 opening which will fill my machine a little faster than the Kenmore hoses it came with.
Oddly enough they are all made in China (naturally!) but the hose from Certified are considerably better made and heftier.