Aluminum body, rubber bladder, will not rust.
Metric, works very well with ½” holes. (See our demo video for the benefits of working with metric). No pre-tightening is needed.
Don’t let the inexpensive price fool you! This durable packer is designed for tough injection conditions. A simple effective design that has been field tested for years. These packers can be injected with pressures up to 4000psi. Includes the zerk head for solid connections to your existing injection equipment. This positions the check valve on the inlet side of the packer.