Downside of this pump...ordering extra parts.
Darn cat took off with one of the gaskets inside the bottle connector, which makes it air-tight, and I cannot find it. it comes with extra, so I'm OK (I also know to never leave them on the counter to dry now, as she is a bad girl and will get up there). But I wanted to order extra.
They only ship via FedEx. At $18 to start! So my $12 for extra gaskets is $18 to ship it. That is NUTS.
If you order $100 worth of accessories, you get free shipping.