Motor home air cleaner that someone cut the snorkels off. You can cut the snorkels off of a pair of slant six or 2 barrel air cleaners and tack weld them to fix this unit (they all had the same size of snorkels) or run it as is. This is a good air cleaner worth fixing or using.
Wix 42044 should fit. Most dual snorkels 70 and up used the the same filter into the 80s