It's 4 months to the start of maple syrup season and the first box just arrived from McMaster-Carr.

My Purolator driver likes to deliver these McMaster-Carr boxes because he gets to look at the latest changes to my machine room (and to visit the caramel fridge in my office.)

This box includes a bunch of replacement O-rings for the John Guest fittings in my RO system. If you've ever tried to buy replacement O-rings you will have been frustrated by the fact that it's very difficult to figure out what kind of O-rings they are and that they are available in very small packages for a ridiculously high price.

They are EDPM Dash 110 O-rings (McMaster-Carr catalog number 9561K41 .) $1.71 for 25 pcs.