When will the VL 35 be available again?

Next month.

Can you use the dome expansion lid on the VL 35 without the collar attachment?

sure.

Do I need the slider for this fridge? I do not have a set of drawers so mounting a slide is not an option to my rig - not going to drill into the cargo area floor. Will the fridge overheat or leak on me?

Just leave enough space for heat dissipation.

What are the outer dimensions without the handles?

around 25.9*15.2*15''

Does the 42L come with both the vl35 lid and the 7l extension dome lid?

sure, 42L come with VL35lid and a 7L dome lid. you can use it as a 35L fridge freezer or a 42L.

If I get the vl35 and later I need more room can I get the expansion collar and lid? If so how?

sure, you can purchase the expansion collar and lid, see this https://icecofreezer.com/collections/iceco-vl-series/products/iceco-expandable-portable-refrigerator-vl35.

I purchased the VL 35 with the goal of adding the expansion pack because amazon wasn't selling the kit. What is the part # to order the collar/dome etc ? thanks!

here is the link: https://icecofreezer.com/collections/iceco-vl-series/products/iceco-expandable-portable-refrigerator-vl35

What are the dimensions if the handles are removed?

about 25.5 inches.

Does the 7L dome fit the VL35 fridge?

yes, 7L dome fit the VL35 fridge.

Hi. which slide fits to this refrigerator?

VL45/60 slide.

Where can you buy the AC power adapter for the expandable cooler fridge?

please see the accessories part in website, you can purchase AC adapter in that listing.

Is it at all possible to have this product shipped to a Canadian address?

sorry to tell you that we can't ship to Canadian address at present, thank you for your supporting.