Pella® Vinyl Windows and Doors 
Pella 250 Series Double-Hung
Detailed Product Descriptions

Frame
•	Overall frame depth: 3-1/4" on all frame types.  
•	Frame members are mitered and heat fused to provide a fully welded corner assembly. Sill is fitted with weeps.
•	Frame: [1-1/8" setback nail fin for 2-1/8" wall depth] [nail fin with flat casing for 2-1/8" wall depth1] [Block frame for 3-1/4" wall depth] [Integral 5/8" flange for 3" wall depth]. 
•	Interior and exterior frame surfaces are extruded rigid uPVC.
Sash
•	Sash members are extruded, rigid uPVC [with optional foam insulation1].
•	Sash members are mitered and heat-fused to provide a fully welded corner assembly.
•	Includes an integral extruded sash lift as standard.
•	Contains sealed insulating glass.
Weatherstripping
•	Sash is weatherstripped around the sash perimeter with a fin-type, pile weatherstripping and vinyl wrapped foam weatherstrip.
 Glazing System
•	Quality float glass complying with ASTM C 1036.
•	Exterior face-glazed sealed insulating glass. 
•	Dual-Pane insulating glass [[annealed] [tempered]] [[Advanced] [NaturalSun] [SunDefense™] Low-E coated [with Argon]] [[NaturalSun+] [SunDefense+] Low-E with argon]] [Bronze, Advanced Low-E coated [with Argon]] [Obscure3] [High Altitude2].
-or-
•	1" Triple-Pane [[annealed] [tempered]] [[Advanced] [NaturalSun] Low-E coated [, with Argon]] [Obscure3] [High Altitude2].
Interior / Exterior
•	Window frame and sash members are [[White] [Almond] [Fossil] with integral color extruded throughout the profiles] [[Brown] [Black] laminate exterior, consisting of a solar reflective coating exceeding AAMA 307 test requirements, with White integral color extruded throughout the profiles on the interior].
•	All exposed PVC surfaces are smooth, glossy and uniform in appearance.
 Hardware
•	Constant force balances connected to sash with stainless steel spring and concealed within the frame.
•	Upper and lower sashes are fully operable for ventilation.
•	All fasteners are corrosion-resistant material compatible with PVC.
•	Locks are factory-installed, zinc die cast, self-aligning, [cam action locks] [AutoLock] located on the check rail. Two sash locks are installed on units with 29-1/2" or greater frame width.
•	Tilt latches are factory installed, [zinc die cast (advanced performance)] [nylon 6 (standard)] and are located on the check rail of the lower sash and the top rail of the upper sash.
•	Hardware finish is [White] [Almond] [Fossil].
 Screens
•	[Full-size] [Half-screen] Set in aluminum frame and fitted to exterior of window.
•	Screen frame finish is baked enamel, color to match exterior
•	Screens for windows with frame width >39" or frame height > 53-1/2" have a screen spreader bar.
•	InView™ Flat Screen
•	Black vinyl coated 18/18 mesh fiberglass screen cloth complying with ASTM D 3656 and SMA 1201.
-or-
•	Hidden screen (Available only to select markets/sales channels, contact your local sales representative for details).

Optional Products	
Grilles
•	Grilles-Between-the-Glass
•	[Dual-Pane Insulating glass contains [[3/4"] [1"] contoured] [5/8" flat] aluminum grilles permanently installed between two panes of glass] [Triple-Pane Insulating glass contains 3/4" contoured aluminum grilles permanently installed between three panes of glass].
•	Patterns are [Traditional] [9-Lite Prairie] [6-Lite Prairie] [Top Row].
•	Interior grille color matches interior frame. 
•	Exterior grille color [3/4" Grille is [White] [Almond4] [Fossil4] [Brown] [Black]] [1" Flat Grille is [White] [Almond4] [Fossil4]] [5/8" Flat Grille is [White] [Almond4] [Fossil4]].
Hardware
•	Optional limited opening hardware available for vent units in [White] [Almond] [Fossil] extruded vinyl to match the unit; nominal 3-3/4" opening.
•	Optional window opening control device available for factory or field installation.  Device allows window to open less than 4" with normal operation, with a release mechanism that allows the sash to open completely. Complies with ASTM F2090-10.
 
(1) Flat casing available only to Northeast region, not all color options available at launch. Contact your local sales representative for current offering.
(2) Dual-Pane IG High Altitude glazings are available with or without Argon. Triple-Pane IG High Altitude glazings are only available without Argon.
(3) Obscure glass not available with Bronze Advanced, SunDefense+ or NaturalSun+ Low-E IG.
(4) Almond grilles only available on almond units. Almond units with grilles will have an almond grille color, Fossil extruded color units with grilles have a Fossil grille color.