The situation sucks. In my case the majority of regulators I own are Apeks and the Aqualung/Apeks supply chain has been a bit unsteady. I don't see it getting much better even with the Mares/Head acquisition.
Luckily I was able to source o-rings in bulk and I bought a large supply of generic Apeks HP seats from ScubaGaskets. When I was in Malta last year M&A was happy to sell me any Apeks parts I needed so I bought a bunch of spares there.
I used to be able to buy Apeks parts/service kits from overseas but a lot of companies stopped shipping to the United States. This was even before all the tariff nonsense and it's even worse now.
Luckily I was able to source o-rings in bulk and I bought a large supply of generic Apeks HP seats from ScubaGaskets. When I was in Malta last year M&A was happy to sell me any Apeks parts I needed so I bought a bunch of spares there.
I used to be able to buy Apeks parts/service kits from overseas but a lot of companies stopped shipping to the United States. This was even before all the tariff nonsense and it's even worse now.