How we find any alternative for this one
The Restek product look like below
Product Name: UHP Pulse Dampener
Dimensions: 2.5" diameter x 2.0" high
Cat.#:26549
Specifications:
Operating Pressure: 0–18,000 psi
Pulsation Dampening: 3:1 reduction in pulsation (dependent on pump characteristics and system volume and pressure)
Fluid Path Volume: 220 μL (atmospheric pressure); +44 μL (per 1,000 psi system pressure)
Wetted Materials: 316 SS; PTFE
Dimensions: 2.5" diameter x 2.0" high