VEVOR Vacuum Pump 12 CFM 1 HP Double Stage Air Conditioning Vacuum Pump 110V Ultimate Vacuum Refrigerant HVAC Air Tool for Automobile Reparation Vacuum Evacuation

I bought this to replace my Harvest Right pump, it is quieter than the original and only requires 1 replacement connection. I purchased a 3/4" Male 37 deg Flare JIC (1-1/16" x 1/2") Male NPT Plated steel hydraulic fitting and it is working great! https://www.amazon.com/dp/B0CRB6H1BJ?ref=ppx_yo2ov_dt_b_product_details&th=1 So far the pump is working great, it got unhappy after 46 hrs strait but I don't blame it.

Doesn't pull enough vacuum for a freeze dryer. I haven't tried it for A/C service but, it doesn't seem like it would work for that, either. It seems to struggle to draw a complete vacuum. Vevor doesn't seem to be a reliable brand. Just more Chinese junk.

La compre en un buen precio.

FYI we have a medium freeze dryer from Harvest Right. Our pump went out so we decided to try this pump before buying an expensive Harvest Right brand. This pump actually works better then the original pump. We are back up and running but this pump is much more quiet then the Harvest Right one and much more sturdy.

Very nice, strong, quite pump. Plenty of vacuum. Great value for the money.

This pump looks good, but unable to hook up to harvest right freeze dryer. A metric 22x1,5 female reduced to a male 1/2 inch NPT is required to make the hose connection. This can be ordered from a supplier that handles air and hydraulic fittings and hoses. My fitting should arrive today. Will add to this review after it is installed and checked out the pumps operational capabilities on the freeze dryer.

For anyone else that buys this and tries to pull a vacuum you might notice the distinct lack of suction after 29.9. this is what happened to me, turns out it's the stupid cheap fittings they put on it. With a massive crescent wrench, you can remove the 1/4 flare to 3/8 npt fitting then remove the 3/8 npt to 1/2 npt fitting. At this point build yourself a manifold like I did or get a 1/2 npt to 3/8 flare fittings directly. With the manifold I built for it, I now get 1/4, 3/8, and 1/2 hookup options. After changing the fittings I was able to pull 250 microns in 24 mins. Before I did this it would never go that low. If you do change the fittings out make sure to use something like locktite 554 to seal the threads.

Did NOT work out of the box. Motor didn't turn, just made a humming noise. Worse was trying to get a replacement. Amazon refused to just send me a replacement in exchange for the dead one. I wasted hours in their circle of incompetence they call "customer service." For some arbitrary reason the only thing I could do was return this for a refund and then place a new order for another one. Being a business account that requires submitting for approval, and waiting for the bureaucracy to decide to place the order when they feel like it, I needed it faster than that. I found it on Vevor's website for ~$10 cheaper, and I could avoid the red tape that comes with buying on Amazon, so I ordered another one there. When its estimated delivery day came and went and I'd never received a shipped notice or tracking, I emailed their customer service. They said there was an "inventory issue." When prompted for an actual shipping estimate they canceled and refunded my order. The specs look good, I wish I could have actually got one that worked when I needed. Wasn't meant to be I guess. Amazon's customer service used to actually, ya know, service customers, now it's just stone wall, and hope the customer gets frustrated to go away. I tried pretty hard to actually get one of these, but wound up buying the 9.6 CFM Vivohome version instead.

Tiempo de entrega y atención muy bien Artículo cumple con lo requerido, en modo prueba funciona. Tendré que llevarlo a campo para validar desempeño.