1Pcs 50x50x4cm Thick Aquarium Biochemical Filter Pad Foam Sponge Fish Tank Pond # Extra Big Hole-Extra Thick

Description Specifications:
Material: Polyurethane
: Black
Hole:  Extra Big Hole
Size: (L)X(W)X(H) 50X50X4cm/19.69''X19.69''X1.57''(appr.)

Features
and high quality.
Excellent water permeability.
Can be used again after cleaning.
Can be cut any sizes as your needed.
Suitable for using in freshwater and marine water.
Cultivate the nitrifying bacteria for biological filtration.
Offers good biochemical and physical filtration effects.



Extra Big Hole:
It is suitable for fish tank and fish pond filtration.
Mainly used for physical filtration and biochemical filtration.
Especially suitable for the primary filtration environment with dirty water quality.
Use collocation to achieve better effects: fish tank with cotton wool, fish pond with vine cotton.


Notice:
Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering.
Please understand that colors may exist chromatic aberration as the different placement of pictures.
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