I've never had any problems finding any part or supply for my spa and they have been very prompt at delivery also.
I could not run my spa without this part and it was shipped very quickly.
The relief valve for my pump must have been dry rotted and as I screwed it back in the whole thing broke away leaving a decent leak when the pump was running. Found a same size plug locally to use until this one arrived knowing the relief valve being a safety feature needed the right part long term. This was the exact item I needed and it shipped out fast from Spa Depot. Will certainly be utilizing Spa Depot for any further needs.
The original flow valve stripped it didn't have a gasket or o-ring so the pressure was leaking out the side this new flow valve I purchased came with an O-ring but it was much too large I used a gasket that I had on hand when ordering this product needs a smaller o-ring that fits the threads not the cap. Overall spa depot reps were beyond congenial and helpful. I give their service a 5 star.
Got what I needed and fast.