Tall style filter for the C4 transmissions. Fits all Ford C4 transmissions for any 1966-73 Mercury Cougar or Ford Mustang with that W code C-4 transmission. This is designated as the 'tall' filter, introduced in 1965. Our guess is that Ford installed a deeper pan starting in 1965. Solid metal construction with filter inside.
Transmission pan gasket is an optional addon.