I bought a gas meter to order. I called the store staff - they made an order, called back upon arrival of the goods at the store, and all the documents were prepared for my arrival. The purchase took two minutes. The store itself is quite large, the range of gas equipment and spare parts is very large...
Two purchases with a break per week. The ball valve is 1/2 w/g and the second one is 1/2 nipples and 1/2 tee. The ball stopped working after 10-15 openings, the nipples will go to the chermet, because the thread profile does not match. Tested on several couplings, hoses. Result. Even one star, it's with a lot of promise for the future. Apparently, the purchase is at the lowest possible price tag. While I can give you a recommendation, go to the neighbors, to Shcherbakov.
Everything is fine, but make the doors a little more barrier-free. I may not be a typical visitor, but coming to you with a baby in a stroller is another quest.
I went for a consultation (the creepy aunt couldn't explain anything on the phone), left with the goods: a carbon monoxide meter. Good advice, good explanation, nice price for the product.