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The Sterling 400SX features super wave reduction and provides additional mid body support with three additional fiber layers. It is one of our most popular models for hardside (or "wood framed") waterbed mattresses.
Lumbar and mid-body support
Tethered Wave Control System
||Four full sheets of 1.5 oz. fiber
Three mid-body layers of 1.5 oz fiber
||Molded mattress top
Black Bottom; "L" Corner Construction
Fill and Air Vent Valves
Made in U.S.A
||Premium 24 mil Endura III Vinyl, Purple.
(Vinyl colors may vary and do not change the wave control system.)
||5 year Full Warranty with lifetime prorated warranty
Sterling Waterbed Warranty
||Hardside Waterbed Setup Instructions