Trouble twisting Duravent Pellent Vent Pro together

[Lowarea]

I finally got down to business and assembled the vent for my new stove but had a lot of trouble twisting the Pellet VentPro together. There are a couple of pieces where I could only get the tabs to grab just a little, even with two sets of hands on them.. Any suggestions/tips for getting these to twist together?

The o-rings all had a little silicon on them. The instruction book says the lubricant is available throught Duravent, but I don't want to wait. Is the silicon anything special?

Thanks

 

[DexterDay]

Is this 3" or 4"?

3" and oil filter wrenches work very nice.

 

[imacman]

Use anti seize and strap wrenches.

 

[heat seeker]

I'd be concerned that the strap wrenches would collapse the pipe, but if it works, it works.

 

[glenc0322]

rubber strap wrenches