Instapak 900 series Hand Held foam-in-place systems help you achieve maximum product protection with the most reliability of any foam-in-place packaging system available. We will help you evaluate which foam density and system are best suited for your application. The Instapak 901 is versatile and designed to address the needs of medium volume operations. The Instapak 900 utilizes 15-gallon containers and is best suited for lower shipping volumes.