The Aquarian HF Hi-Frequency family of heads is recommended for sensitive playing or when trying to get a bit more high-end from a batter or bottom reso-head. The thin 7mil Nu-Brite film accentuates the higher frequencies in the drum and produces a brighter response.  Available in Clear or White Texture Coated models for use as either a Batter or RESO Head.
The 7mil HF line brings out higher frequency overtones with a clean and choke-free response.