*Product May Be Subject To Extended Lead Times. Ideal for koi ponds up to 8,000 liters, the UltraZap 2 Bag Fibreglass Sand Filter provides superior mechanical filtration. Its robust woven fibreglass construction ensures longevity, while the easy-access top lid simplifies maintenance. This filter effectively removes solids, enhancing water clarity and quality. Note: Koi filter sand is not included and must be sourced separately.