Now manufactured by XKs Unlimited, the molding quality of our brake fluid reservoir is crisp and robust; it incorporates a bottom filter and reinforcing sleeve, just like an original and an XKs Unlimited exclusive. Original floats are made from cork (!) and aluminum, which often corrodes into oblivion. Ours is stainless steel. Because the top differs from original, we include a correct rubber (EPDM actually) cap; with it in place no one will be the wiser. Step up to superior parts manufactured by XKs Unlimited.