I just got off the phone with SPI. They are located right here in my area. I see people on here talk about buying their OC 703 and OC 705 from them, so I called to get their price(s).
It appears that have 2 warehouses in the area. One stocks the OC 703, and the other stocks whats called John Mansfield 814 (also a 3lb rigid fiberglass board).
They can get either one of the two, but said since they already have the JM 814 there, that I should just buy and use it. I asked if the specs were exactly the same between the 2 brands and boards, and they said "as far as they can tell, they are the same".

Now I dont know alot about insulation(s) so do I just get these JM boards to make my sound absorption panels, or get the OC 703. If I get the 703 they have to get it send from the other warehouse, and its also a little more expensive. (They are going to call me back with exact prices between the two)
Has anyone ever used the John Mansfield brand rigid fiberglass??
Thanks
AJ
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