FilmTec Membrane GPD Pet Supply. Pet Supply » All Pet Products » Tropical Fish » Ponds » Aquarium Tank Ponds • Fish Pond Ponds • Accessories Ponds • Fishbowls Ponds • Ponds FilmTec Membrane 50 GPD buy bestselling pet products, supply find reviews, ratings, prices List Price: $69.95 You Save: $0 [ + Zoom ]   [ Buy Now ] Kitchen : Usually ships in 1-2 business days Non User