Raypak R407A 399K BTU

Features:
Raypak's Low Emissions units use combustion control to minimize levels of nitrogen oxides (NOx).  The units meet emissions standards in all Low NOx areas, from Los Angeles (SCAQMD Rule 1146.2 certified) through the San Joaquin Valley (SJAPCD Rule 4308), and any other areas applying the stringent SCAQMD standard - the "Gold Standard" of emissions regulations - to residential pool heaters.
 
Available for natural gas only
 
Digital Controls
provide solid-state reliability and accuracy and clear diagnostics.  Setting it for the temperature you want is a snap...push a few buttons and walk away.
 
PolyTuf Textured Powder Coating
 
Wind-Resistant Design
 It is so thoughtfully and carefully designed it actually protects itself from the things that tend to stifle ordinary pool and spa heaters. It delivers uninterrupted heating performance regardless of falling leaves, wind, airborne debris, rain, downdrafts, updrafts, sleet, snow, etc.
 
Polymer Headers
Polymer headers prevent rust stains from harming your pool’s surface, giving you years of trouble-free swimming pleasure.
 
All-Copper-Fin-Tube Heat Exchanger
The fin tubes of the heat exchanger are each made from a single piece of extruded copper. This integral-fin design allows maximum heat transfer to be attained and maintained. These headers are specifically designed for the residential market...for commercial installations, use the ASME models. 
 
Stainless Steel Tube Sheet
Stainless steel tube sheets are used on all Raypak gas heaters. This allows for a completely nonferrous waterway, leaving your pool truly rust-free.
 
CPVC 2" Water Connections
Standard with every Raypak is a set of 2" slip-fit CPVC water connections to make your installation secure and effortless.
 
Condensation Protection
The Unitherm Governor inside the header helps reduce condensation from low inlet water temperatures.
 
High Flow Rates
The Raypak gas heater comes with an automatic bypass built into the header.
 
Burner Tray
Every burner tray is built to last, from the stainless steel burners to the aluminized metal used in the heat sensitive areas.
 
Fire Tile
A ceramic fiber combustion box keeps your heater running efficiently while keeping the outside jacket cool. 
 
Fuel-Efficient
Energy-smart Raypak heaters consistently achieve the highest efficiency ratings.  They exceed all federal and state standards.